Enter the total number of complaints and the total number of units into the Calculator. The calculator will evaluate the Complaints Per Million. 

Complaints Per Million Formula

CPM = C/U *1,000,000

Variables:

  • CPM is the Complaints Per Million (complaints/million units)
  • C is the total number of complaints
  • U is the total number of units

To calculate Complaints Per Million, divide the number of complaints by the number of units, then multiply by 1,000,000.

How to Calculate Complaints Per Million?

The following steps outline how to calculate the Complaints Per Million.


  1. First, determine the total number of complaints. 
  2. Next, determine the total number of units. 
  3. Next, gather the formula from above = CPM = C/U *1,000,000.
  4. Finally, calculate the Complaints Per Million.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

total number of complaints = 94

total number of units = 12